I'm looking at two wholesale diamonds one is round brilliant(is this the same as ideal).61 e vvs2 with excellent symmetry and polish a faceted medium girdle no flourescence. The table is 58% and the depth is 60.3% is this a good ratio? Under characteristics it says needle what does that mean is it a major flaw? The cost is around $2100.00 is it worth paying around $450.00 to get basically the same specs but a d vvs1 should I pay to upgrade,is it a better investment,is there a major difference of look between the two I need an experienced opinion.